Each panel shows the impact of chlorpyrifos exposure, as assessed by quartiles of the mean level of the urinary metabolite, TCPy, on neurocognitive outcomes in the four field stations for those that had a significant field*tcpy interaction effect (p <.05). Specifically, Serial Digit Learning (panel a), Symbol Digit Task (panel b), Similarities (panel c), Tapping, Alternating (panel d), and Visual Motor Integration (panel e) are shown. Lower values indicate worse performance.